You are given that
4a-2b = 10
(a)
Write down the value of
2a - b

The value of 2a - b in the given expression is 5

From the question,

We are to write down the value of 2a - b

The given expression is 4a - 2b = 10

To determine the value of 2a - b, we will factorize the given expression and then solve for 2a - b

From the given expression,

4a - 2b = 10

Factorizing, we get

Now, divide both sides by 2

∴

Hence, the value of 2a - b is 5

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2a - b = 5

Step-by-step explanation:

4a - 2b = 10

take out the highest common factor of the left side

2(2a - b) = 10

divide both sides by two

2a - b = 10/2

2a - b = 5

85.560%

step-by-step explanation:

conditional probability is defined as:

p(a|b) = p(a∩b) / p(b)

in other words, the probability that a occurs, given that b has occurred = the probability that both a and b occur / the probability that b occurs.

in this example:

p(turns 64 | turns 44) = p(turns 64 & turns 44) / p(turns 44).

if someone turns 64, they must have already turned 44, so:

p(turns 64 | turns 44) = p(turns 64) / p(turns 44)

on page 42, we see that of the original 100,000, 94944 turn 44, and 81234 turn 64.   therefore:

p(turns 64 | turns 44) = 81234 / 94944

p(turns 64 | turns 44) = 0.85560

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step-by-step explanation:

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